Starter for vapor-stoves



(No Model.)

c. M. HOLLINGSWORTH. STARTER FOR VAPOR STOVE-S.

No. 451,050. Patented Apr. 28, 1891.

- UNITED STATES PATENT CHARLES M. HOLLINGSIVORTH, OF ROCKFORD, ILLINOIS.

STARTER FOR VAPOR-STOVES.

SPECIFICATION forming part of Letters Patent No. 451,050, dated April28, 1891.

Application filedNovember 19, 1888. Serial No. 291,280. (No model.)

To aZZ whom, it may concern.-

Be it known that 1, CHARLES M. HOLLINGS- WORTH, a citizen of the UnitedStates, resid ing at Rockford, in the county of Vinnebago and State ofIllinois, have invented certain new and useful Improvements in Startersfor Vapor-Stoves, of which the following is a specification.

This invention pertains to the preliminary heating of the generatorrequired in starting it in any form of hydrocarbonwapor stoves in whichthe liquid hydrocarbon is vaporized under pressure within a metallicgenerator by applying heat to the same and in which the generator afterit is started is kept hot by a burner placed in contact orheatingcombination with it which is supplied with vapor from the generatoritself.

My improvement consists in substituting for the drip-cup and its use aconvenient and efficient device for the preliminary heating of thegenerator without the production of soot or smoke operated by theevaporationgravitation process of vaporizing and consuming a liquidhydrocarbon, which I have described and claimed as my invention inPatent No. 420,797, dated February 4, 1890. By simply exposing to theair a portion of the liquid hydrocarbon spread over anevaporating-surface within an elevated chamber, into the upper end ofwhich air is freely admitted,

and from which a conducting-pipe leads down ward to a sub-burner placedunder the generator to be heated, this sub-burner is supplied at oncewith the requisite mixture of vapor and air for producing a blue andsmokeless flame. The volatile oil is fed onto the evaporator from areservoir supported above Figure 1 is an isometrical representation of atwo-burner vapor-stove with my attachment in place. Fig. 2 is anisometrical representa tion of a sub-burner, showing its connection witha vapor-supply pipe. Fig. 3 is an isometrical representation of asliding cut-off used in connection with the sub-burner. Fig. 4. is avertical section of a sub-burner. Fig. 5 is a vertical central sectionof the ordinary elevated tank and a part of the standpipe of the stove,together with the upper parts of the starting attachment.

For convenience in description the ordinary burners of the stove will bereferred to as service-burners to distinguish them from the sub-burnerof the starting attachment.

The vapor-stove represented in Fig. 1 for the purpose of showing theconstruction and manner of using my starting attachment is a common formof two-burner stoves with an elevated tank and with separate orindividual generators, each of which requires separate 7o preliminaryheatingbefore the service-burner, which it supplies, and which afterwardmaintains its heat, can be used. In therepresentation one of thegenerators 1, its jet-valve 2, and its service-burner 3 are shown inplace, 7 5 supported by the stand-pipe 4, rising from the commonoil-supply pipe 5. The other stand-pipe is shown with the generator andburner removed from it, and the top of the stove is also broken away toexpose to view the parts beneath. The drip-cups underneath thegenerator, with which stoves of this form are com monly provided, arehere replaced by the sub-burner 6 of my starting attachment.

The several parts of the two-burner attachment shown in Fig. 1 are thetwo sub-burners 6, each provided with a cut-off cover 7, the L-shapedpipe 8, the evaporatorof perforated sheet metal 9, suspended within theupper end of this pipe, the oil-feed device 10 11, attached to thebottom of the reservoir, by means of which oil is fed onto theevaporator while the attachment is in use, and the spring hook 12, tohold the top of the pipe in place. 5

The upright part of the L-shaped pipe 8 serves as anevaporating-chamber, while the whole pipe acts as an air and vaporconductor, by which the gaseous mixture is conveyed as itis formed tothe sub-burners. The 00 upper end of this pipe is beveled, in order thatthe rate of feed of oil to the evaporator maybe seen and properlyregulated.

The evaporator 9, consisting of a strip of perforated metal plate nearlyequal in width to the diameter of the pipe. has a bend near its upperend, thus affording a sloping or inclined surface, onto which the oil isallowed to drop. It is supported in its place by hooking its tapered endover the large side of the upper end of the pipe 8.

In the oil-feed device the screw-down valve opens and closes a zigzagoutlet from the 10 reservoir through the valve-bearing piece 11,

which is so soldered to the bottom of the reservoir, and the oil whenrunning drops from the lower corner of this bearing-piece to theevaporator. The sub-burners consists, essentially, ot' a broadburner-cup and aperforated top plate, which closely tits into the top ofthe cup. The walls of this cup around its open bottom are so shaped asto closely tit to and half embrace the conducting-pipe 3 :0 about avapor and air outlet 15 from it to the sub-burners, and the sub-burneris secured in its position on the conducting-pipe by 1 her.

means of a band 16, passing under the pipe and having its ends onopposite sides made i fast to the burner-cup. tSee Figs. and l.)

As a means of supporting the whole attachment and holding thesub-burners in place, i each sub-burner is provided with a set-screw lclamp 17 at one end, by which it is fastened to l the stand-pipe of thegenerator to which it bet longs, and the clamps are so shaped with an lopen side as to admit of the easy removal of l the whole attachment fromthe stove.

By providing cut-olfs to the sub-burners 1 either one can be used alonewhile. the other 1 is closed. The use of a cut-off also obviates l thenecessity of waiting for the flame of the l sub-burner to expire ofitself after the oil-feed l is turned off preparatory to the lighting ofl theservice-burner. Besideother advantages, a cut-off placed on top ofthe sub-burner serves as a cover to prevent any liquid which ,j mayoverflow from vessels on the stove from t entering the sub-burner. Thesub-burner is 15 provided on one side with a projecting arm and stop 18,to arrest and support the cut-off 7 when it is drawn back. The stop onthe cut-off 19 arrests its motion in closing it, while this and theflanges at its ends 20 serve 1 to guide it to its place.

In applying my starting attachment to vapor-stoves generally, whichrequires some sort of special device for heating the generator, thenumber of sub-burners used would be de- 5 5 termined in each case by thenumber of generators to be heated, and the form of the subburner andmanner of attaching it would be adapted in each case to the form of thegenerator to be heated and the relative positions of it and otheradjacent parts of the stove.

In the accompanying drawings I have represented the manner of combiningmy starting device with the other parts of my stove in which therequisite pressure upon the contents of the generator is secured bymeans of an elevated oil-reservoir, the oil supply for the tsnosostarter being obtained in the manner shown and described from thisreservoir.

For stoves in which pneumatic pressure is em ployed in operating thegenerator the starting attachment would require a reservoir of its ownplaced above its evaporating-chamln any case the starting device whenthus made complete in itself could be more conveniently attached tostoves after they have left the hands of the manufacturer than when madeto be used in connection with the general reservoir of the stove.

in operating this starting device the cut off cover 7 to the sub-burner6 is tirst drawn back, and the oil-feed valve 10 is thus opened,allowing the oil to drop onto the perforated evaporator D, whence itrapidly evaporates into the air that is within the L-shaped pipe 8, themixture of air and vapor being carried by its own weight down the pipeto be lighted at a sub-burner. After the generator 1 has been thoroughlyheated by the flame of the su b-burner the oil-feed valve 10 is closed,and

. a moment later the cut-off 7 to the sub-burner is closed, thejet-valve of the generator 9 opened, and the service-burner I3 lighted,the

action of the generator when started being kept up by heat fromtheservice-burner placed in contact with it and which itsupplies with 1vapor. When it is desired,both generatorsor more than two if the stovehas moremay be started in this way at the same time.

i claim as my invention l. in a vapor-stove, the combination, with acombined vapor generator and burner, an

, elevated oil-reservoir, and an oil-supply pipe connecting thegenerator and reservoir, of an oil-feeding device, an elevatedevaporatingchamber below said reservoir having an airinlet in its upperpart, a conducting-pipe leading downward and laterally from the lowerpart of said chamber and forming an outlet therefrom, and a sub-burnerin communication with said conducting-pipe and located underneath saidcombined vapor generator and burner, substantially as set forth.

In a vapor-stove, the combination, with a combined vapor generator andburner, an elevated oil-reservoir, and an oil-supply pipe connecting thegenerator and reservoir, of an oil-feeding device, an elevatedevaporatingchamber below said reservoir having an airinlet in its upperpart, a conducting-pipe leading downward and laterally from the lowerpart of said chamber and forming the outlet therefrom, a sub-burner incommunication with said conducting-pipe and located under- I neath thecombined vapor generator and burner, and a cut-01f to said sub-burner,substantially as set forth.

ll. In a vapor-stove, the combination, with a combined vapor generatorand burner, an elevated oil-reservoir, and an oil-supply pipe connectingthe generator and reservoir, of an oil-feeding device, an elevatedevaporatingchamber below said reservoir having an airinlet in its upperpart, an evaporator placed a combined vapor generator and burner, an

elevated oil-reservoir, and an oil-supply pipe connecting the generatorand reservoir, of an oil-feeding device, an elevated evaporatingchamberbelow said reservoir having an airinlet in its upper part, an evaporatorplaced within said chamber, a conducting-pipe leading downward andlaterally from the lower part of said chamber and forming the outlettherefrom, a sub-burner in communication with said conducting-pipe andlocated underneath said combined vapor generator and burner, and acut-off to said sub-burner, sub stantially as set forth.

5. In a vapor-stove, the combination, with a combined vapor generatorand burner, an elevated oil-reservoir, an oil-supply pipe connectingsaid generator and reservoir, and a stand-pipe, of an oil-feedingdevice, an elevated evaporating-chamber below said reservoir having anair-inlet in its upper part and an air and vapor outlet at its lowerpart, and a sub-burner in communication with the evaporating -chamber,said sub-burner located underneath the combined vapor generator andburner and supported by said stand-pipe, substantially as set forth.

6. In a vapor-stove, the combination, with a combined vapor generatorand burner, an elevated oil-reservoir, an oil-supply pipe connectingsaid generator and reservoir, and a stand-pipe, of an oil-feedingdevice, an elevated evaporating-chamber below said reservoir having anair-inlet in its upper part and an air and vapor outlet at its lowerpart, and a sub-burner in communication with the evap crating-chamber,said sub-burner being located underneath the combined generator andburner and provided with an open sided scre\ *-clamp,whereby itisremovably attached to the stand-pipe, substantially as set forth.

7. In a vapor-stove, the combination, with a combined vapor generatorand burner, an elevated oil -reservoir, and an oil-supply pipeconnecting said generator and reservoir, of an oil-feeding device, anelevated evaporatingchamber having an air-inlet in its upper part and anair and vapor outlet at its lower part, and a sub-burnerincommunicationwith said chamber and located underneath said combinedvapor generator and burner, said subburner consisting, essentially, of aburnercup witha perforated top, substantially as set forth.

8. In a vapor-stove, the combination, with a combined vapor generatorand burner, an elevated oil-reservoir, and an oil-supply pipe connectingsaid generator and reservoir, of an oil-feeding device, an elevatedevaporatingchamber having an air-inlet in its upper part, aconducting-pipe extending downward and laterally from thelower'part ofsaid chamber, a sub-burner in communication with said conducting-pipe,said sub-burner being located underneath said combined vapor-generatorand burner and having a perforated top, and a cut-off to saidsub-burner, said cut-off being in the form of a close-fitting cover tothe perforated top of the sub-burner, substantially as set forth.

CHARLES HOLLINGSWVORTH.

lVitnesses:

A. O. BEHEL, E. BEHEL.

